:   '''pushd''' ?''dir''?

pushd is one of the [Tclx] extended tcl commands.  It is used to push the current directory onto a directory stack that can be used with [cd].  This permits one to keep track of a series of directories one has visited (with the help of [dirs]), and then do a [popd] to get directories off of the stack.
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[KPV] I've never found '''pushd''' to be very useful on DOS/Windows because
of file volumes and how each volume has it's own current directory. Using
'''pushd''' has the unwanted side-affect of likely changing the current 
directory of the volume you're changing to. For example, if the current directory on volume F: is say "''f:\myDirectory''" and I call '''pushd 
f:\temp''' then '''popd''' and sometime later go back to that volume 
via ''f:'', I'll be put into the directory "''\temp''" rather 
than "''\myDirectory''".

In fact, when I do need '''pushd''''s functionality, I end up needing
to call it twice: once to get to the right volume, then to get to the
right directory (and don't forget you'll need to call '''popd''' twice).
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[FEG] I find pushd/popd particularly useful in a situation where your working directory is some elaborate path that you want to avoid having to recall (either interactively or programmatically).  Just pushd to where you need to be for some command, run the command, then popd and you're right back where you started.
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Also see "[pushdpopd.tcl]".
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[Category Command]